2022 Annual Meeting

(132a) Investigating Serrs of Electrogenic Bacteria Via Charge Transfer Enhancement By Graphene Nano-Dots (GNDs)

Authors

Cotts, S. - Presenter, University of Illinois at Chicago
Berry, V., University of Illinois at Chicago
Keisham, B., University of Illinois at Chicago
Nemade, R., University of Illinois at Chicago
Giles, A., University of Illinois at Chicago
Enhancement of bacterial peaks via Raman Spectroscopy has provided an efficient method of bacterial detection without lengthy cell cultures. We report the use of graphene nano-dots (GNDs) to chemically detect and enhance select bacterial peaks by a factor of ten. This demonstrates the charge transfer ability of electroactive bacteria and provides a platform for discussing chemical enhancement phenomena for biological sensing at the cellular level. By integrating the molecule energy levels of an analyte with cytoelectrons (4.66-4.74 eV) and a GND (~4.9 eV) substrate, we can design new cytobotic constructs leveraging cellular respiration beyond standard electrochemical devices.